Recording apparatus

Abstract

A recording apparatus includes: a feeder, provided in an upstream in a transfer path for transferring a medium, for feeding the medium to a downstream in the transfer path one by one, the medium being stacked at an angle; a recording head, provided in the downstream of the feeder, for performing recording for the medium; a carriage, on which the recording head is mounted, for reciprocating in a main scanning direction along a carriage guide axis; a transfer roller for transferring the medium by rotating, the transfer roller including a transfer-driving roller and a transfer-driven roller; a stacker having a medium-placed surface, the stacker being positioned at a first position allowing the medium to be substantially horizontally fed from the medium-placed surface to a position under the recording head and be substantially horizontally discharged from the position under the recording head onto the medium-placed surface, or a second position for receiving and stacking the medium fed by the feeder, the second position being on a lower level than the first position, the medium-placed surface being arranged substantially horizontally when the stacker is positioned at the first position and is arranged at an angle when the stacker is positioned at the second position; and a first link mechanism for displacing the stacker to cause the carriage guide axis to displace. The carriage guide axis can be displaced upward and is prevented from moving downward when the stacker is positioned at the first position.

1. A recording apparatus comprising:
 feeding means for feeding a medium to a downstream side of a transfer path; 
 a recording head, provided in the downstream of said feeding means, operable to perform recording for said medium; 
 a carriage, on which said recording head is mounted, operable to reciprocate in a main scanning direction along a carriage guide axis; 
 a transfer roller operable to transfer said of medium by rotating, said transfer roller including a transfer-driving roller and a transfer-driven roller; 
 a stacker having a medium-placed surface, said stacker being positioned at a first position allowing said medium to be substantially horizontally fed from said medium-placed surface to a position under said recording head and be substantially horizontally discharged from said first position under said recording head onto said medium-placed surface, or a second position operable to receive and stack said medium fed by the feeding means, said second position being on a lower level than said first position, said medium-placed surface being arranged substantially horizontally when said stacker is positioned at said first position and is arranged at an angle when said stacker is positioned at said second position; and 
 first link means for displacing said stacker to cause said carriage guide axis to displace, wherein 
 said carriage guide axis is arranged to be displaced upward when said stacker is positioned at said first position, and is prevented from moving downward as long as said stacker is positioned at said first position. 
 
     
     
       2. A recording apparatus for performing recording for a medium comprising a first type of medium and a second type of medium comprising:
 feeding means for feeding said medium to a downstream side of a transfer path; 
 a recording head, provided in the downstream of said feeding means, operable to perform recording for said first type of medium and said second type of medium; 
 a carriage, on which said recording head is mounted, operable to reciprocate in a main scanning direction along a carriage guide axis; 
 a transfer roller operable to transfer said first type of medium by rotating, said transfer roller including a transfer-driving roller and a transfer-driven roller; 
 a stacker having a medium-placed surface, said stacker being positioned at a first position allowing another transfer path for said second type of medium to be formed or at a second position, located on a lower level than said first position, operable to receive and stack said first type-of medium, said medium-place surface being arranged substantially horizontally when said stacker is at said first position and is arranged at an angle when said stacker is at said second position, said another transfer path allowing said second type of medium to be straightly fed from said medium-placed surface to a position under said recording head and be straightly discharged from said position under said recording head onto said medium-placed surface; and 
 first link means for displacing said stacker to cause said carriage guide axis to displace, wherein 
 said carriage guide axis is displaced upward when said stacker is positioned at said first position, and is prevented from moving downward as long as said stacker is positioned at said first position, and said second type of medium is suitable for substantially straight transfer. 
 
     
     
       3. A recording apparatus as claimed in  claim 1  or  2 , further comprising a transfer-driven roller switching mechanism operable to switch the state of said transfer-driven roller ( 19   b ) between a contact state in which said transfer-driven roller is in contact with said transfer-driving roller and a cleared state in which said transfer-driven roller is moved upward, by operating an operating unit to cause said transfer-driven roller to be displaced. 
     
     
       4. A recording apparatus as claimed in  claim 3 , wherein said transfer-driven roller switching mechanism is arranged to be driven only when said stacker is positioned at said first position. 
     
     
       5. A recording apparatus as claimed in  claim 4 , further comprising a regulating mechanism operable to regulate the driving of a discharge-driven roller switching mechanism in accordance with the position of said stacker. 
     
     
       6. A recording apparatus as claimed in  claim 5 , wherein said regulating mechanism is arranged to place a discharge-driven roller only in a contact state when said stacker is positioned at said second position. 
     
     
       7. A recording apparatus as claimed in  claim 4 , further comprising a returning mechanism operable to affect said transfer-driven roller switching mechanism to bring said transfer-driven roller in said contact state when said stacker is displaced to said second position, in a case where said stacker is positioned at said first position and said transfer-driven roller is in said cleared state. 
     
     
       8. A recording apparatus as claimed in  claim 7 , wherein said returning mechanism is formed by the same component as that forming said regulating mechanism. 
     
     
       9. A recording apparatus as claimed in  claim 4  wherein said transfer-driven roller is supported by a roller holder in such a manner that a downstream part of said transfer-driven roller is pivotable around an upstream portion of said transfer-driven roller as a pivot center, and
 said transfer-driven roller switching mechanism includes a cam rotation axis having a cam capable of coming into contact with said roller holder, and switches said cleared state and said contact state of said transfer-driven roller in accordance with the pivot of said roller holder by means of a cam mechanism operable to bring said cam into contact with a cam follower and to move said cam away from said cam follower by operating said operating unit, said cam follower being arranged in the upstream of said roller holder. 
 
     
     
       10. A recording apparatus as claimed in  claim 9 , wherein an actuation member includes a space therein and has an U-shape that becomes convex upward seen from the downstream of said transfer path, said operating unit being arranged within said space. 
     
     
       11. A recording apparatus as claimed in  claim 4  wherein said transfer-driven roller switching mechanism is capable of being driven together with the movement of said first link means. 
     
     
       12. A recording apparatus as claimed in  claim 3 , wherein said operating unit of said transfer-driven roller switching mechanism is inoperable when said stacker is positioned at said second position. 
     
     
       13. A recording apparatus as claimed in  claim 2  wherein said carriage guide axis is supported at its axis ends by a frame via an eccentric mechanism,
 said first link means includes an actuation member engaged with said stacker; and a power transmission member operable to be driven together with said actuation member to cause said eccentric mechanism to pivotally move, and 
 a gap between said recording head and said first or second type of medium is adjusted by displacing said carriage guide axis together with the displacement of said stacker. 
 
     
     
       14. A liquid emitting apparatus comprising:
 feeding means for feeding a medium to a downstream side of a transfer path; 
 a liquid emitting head, provided in the downstream of said feeding means, operable to emit a liquid; 
 a carriage, on which said liquid emitting head is mounted, operable to reciprocate in a main scanning direction along a carriage guide axis; 
 a transfer roller operable to transfer said medium by rotating, said transfer roller including a transfer-driving roller and a transfer-driven roller; 
 a stacker, having a medium-placed surface, operable to be positioned at a first position allowing said medium from said medium-placed surface to be substantially horizontally fed to a position under said liquid emitting head and be substantially horizontally discharged from said position under said liquid emitting head onto said medium-placed surface, or at a second position for receiving said medium when said medium was fed by said feeding means, said second position being located on a lower level than said first position, said medium-placed surface being arranged substantially horizontally when said stacker is positioned at said first position and is arranged at an angle when said stacker is positioned at said second position; and 
 first link means for displacing said stacker to cause said carriage guide axis to displace, wherein 
 said carriage guide axis is arranged to be displaced upward when said stacker is positioned at said first position, and is prevented from moving downward as long as said stacker is positioned at said first position. 
 
     
     
       15. A recording apparatus as claimed in  claims 1 ,  2  or  14 , wherein an axis of said transfer-driven roller is arranged upstream of an axis of said transfer-driving roller. 
     
     
       16. A recording apparatus as claimed in  claims 1 ,  2  or  14 , further comprising a discharge roller for discharging said medium, said discharge roller comprising a discharge-driving roller and a discharge-driven roller, wherein an axis of said discharge-driven roller is arranged upstream of an axis of said discharge-driving roller. 
     
     
       17. A recording apparatus as claimed in  claim 16  further including a discharge-assisting roller for pressing said medium, wherein said discharge-assisting roller is supported by a first roller holder, and said discharge-driven roller is supported by a second roller holder fixed to a discharge sub-frame, wherein the first and second roller holders are moved together with the discharge sub-frame. 
     
     
       18. A recording apparatus comprising:
 feeding means for feeding a medium to a downstream side of a transfer path; 
 a recording head, provided in the downstream of said feeding means, operable to perform recording for said medium; 
 a carriage, on which said recording head is mounted, operable to reciprocate in a main scanning direction along a carriage guide axis; 
 a transfer roller operable to transfer said medium by rotating, said transfer roller including a transfer-driving roller and a transfer-driven roller; 
 a stacker having a medium-placed surface, said stacker being positioned at a first position allowing said medium to be substantially horizontally fed from said medium-placed surface to a position under said recording head and be substantially horizontally discharged from said position under said recording head onto said medium-placed surface, or a second position operable to receive and stack said medium fed by the feeding means, said second position being on a lower level than said first position, said medium-placed surface being arranged substantially horizontally when said stacker is positioned at said first position and is arranged at an angle when said stacker is positioned at said second position; and 
 first link means for displacing said stacker to cause said carriage guide axis to displace, wherein 
 said stacker is positioned at said first position in accordance with an upward displacement of said carriage guide axis. 
 
     
     
       19. A recording apparatus comprising:
 a feeder, provided in an upstream in a transfer path for transferring a medium, operable to feed said medium to a downstream in said transfer path one by one, said medium being stacked at a certain angle; 
 a recording head, provided in the downstream of said feeder, operable to perform recording for said medium; a carriage, on which said recording head is mounted, operable to reciprocate in a main scanning direction along a carriage guide axis; a transfer roller operable to transfer said medium by rotating, said transfer roller including a transfer-driving roller and a transfer-driven roller; and 
 a stacker having a medium-placed surface, said stacker being positioned at a first position allowing said medium to be substantially horizontally fed from said medium-placed surface to a position under said recording head and be substantially horizontally discharged from said position under said recording head onto said medium-placed surface, or a second position operable to receive and stack said medium fed by the feeder, said second position being on a lower level than said first position, said medium-placed surface being arranged substantially horizontally when said stacker is positioned at said first position and is arranged at an angle when said stacker is positioned at said second position, wherein 
 said stacker is positioned at said first position in accordance with an upward displacement of said carriage guide axis.